Rocky intertidal monitoring: 2017–2018 results from Redwood National and State Parks

A two-year monitoring program (2017–2018) within Redwood National and State Parks revealed dynamic changes in rocky intertidal communities, including sessile invertebrates, algae, ochre sea stars, surfgrass, and sea palms. Conducted through a collaboration between the University of California at Santa Cruz and the National Park Service, this study—part of the Multi-Agency Rocky Intertidal Network (MARINe)—used permanent plots and transects to track annual variations in key species. While broader trend analyses are reserved for five-year reports, this summary introduces a shift toward simplified data presentation while incorporating optional biodiversity metrics. The findings contribute to long-term ecological monitoring, with the program now in its 19th year.

Ammann, K., Dinger, E., & Lohse, D. (2022). Rocky intertidal monitoring: 2017–2018 results from Redwood National and State Parks (, Ed.). National Park Service. https://doi.org/10.36967/2293837